Wraith, Hillbilly, and Deathslinger all have white, glowing eyes.
What does this mean? Does it mean anything? Was it simply an aesthetic choice?
One thing that seems common in these three characters is that they were wronged by other people in some way, and feel their murder is righteous or vengeance for their mistreatment or betrayals. Could that be a sign? I know they're not the only ones who have tragic backstories, but they're the only ones who seem to think their killing is righteous and justified.